Zeavirus is a genus of viruses, in the family Tombusviridae. Monocots plants serve as natural hosts. There is only one species in this genus: Maize necrotic streak virus.[1][2]

Zeavirus
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Tolucaviricetes
Order: Tolivirales
Family: Tombusviridae
Subfamily: Procedovirinae
Genus: Zeavirus

Structure

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Viruses in Zeavirus are non-enveloped, with icosahedral and spherical geometries, and T=3 symmetry. The diameter is around 28-34 nm. Genomes are linear and non-segmented, around 4kb in length.[1]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Zeavirus Icosahedral T=3 Non-enveloped Linear Monopartite

Life cycle

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Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription, using the premature termination model of subgenomic RNA transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Monocot plants serve as the natural host.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Zeavirus Plants None Viral movement; mechanical inoculation Viral movement Cytoplasm Cytoplasm Mechanical: contact; seed

References

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  1. ^ a b c "Viral Zone". ExPASy. Retrieved 13 August 2015.
  2. ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 16 May 2021.
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